Improvement in feeding-screens for bran-dusters



G. S. COOPER.

Feeding-Screens for Bran-Dusters.

No. 135,085, Patentedlan.2l,1873.

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GEORGE S. COOPER, OF BARABOO, WISCONSIN.

Specification forming part of Letters Patent No. 135,085, dated January21, 1873.

or both ends, all as hereinafter described.

Figure l is an end elevation of a bran-duster case and part of the shoe,and the apparatus for operating it; also a part of the shoe in section;and Fig. 2 is an elevation of part of one of the supports of the shoe.

Similar letters of reference indicate corresponding parts.

A represents the end of the case of a branduster; B, the cross-beam ofthe frame; 0, the

shaft of the duster; D, the shoe; E, the springsupport for the upper endof said shoe; F, the springsupport for the lower end; G, a plateextending downward from the bottom of the shoe past an eccentric, H, onthe shaft for shaking the shoe. I is a yoke for causing the eccentric towork the shoe both ways by a positive motion. K is a brace for the plateG. L is the spout for conducting the bran into the reel; M, the riddleof perforated metal for separating coarse matters from the bran; and Nis the prolongation of said riddle for spouting said matters 011'. Thesaid shoe is jointed to its supports E F at O, for allowing it to beshaken back and forth. The said supports have long slotted holes P forthe connectingbolts Q, by which they are fastened to the vertical sidesof the frame, so that said supports may be shifted up or down to alterthe inclination of the shoe, or its height, as may be required. As theshaft 0 has to be shifted lengthwise to adjust the reel relatively tothe brushes, the plate G and the yoke I are made Wide, so that theeccentric will act at all times. In order to support the shoe at theproper height relatively to the duster-reel, and so that it may beoperated by an eccentric on the duster-shaft, by spring-supports havingsufficient sweep for allowing the shoe to swing as much as required, Iconstruct the springsupport F for the lower end of the shoe with the bowQ, which enables me to use a spring at said end, which I could nototherwise do, because it would be too short to have the necessary sweep.

Having thus described my invention, I claim as new and desire to secureby Letters Patent- 1. The combination of yoke G I, brace K, slottedsprings E F, adjusting-bolts Q, and the feed-shoe hinged to saidsprings, as shown and described, whereby the shoe may be reciprocatedand vertically adjusted at either or both ends, for the purposespecified.

2. The spring-supports F for the lower end of the shoe having the bow Q,as specified. GEORGE S. COOPER. Witnesses:

GEORGE MERTENs, GEo. H. PIMBLY.

